#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main() {
    double BMI = 0;
    double high = 0;
    double weigh = 0;
    scanf("%lf %lf",  &weigh,&high);
    BMI = weigh / ((high / 100) * (high / 100));
    printf("%lf", BMI);

    return 0;
}